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Finding the Fourth Proportional to 107,912.58, 161,915.52 and 57,934.32

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Solution

The fourth proportional to 107,912.58, 161,915.52 and 57,934.32 is: 86,926.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,912.58 : 161,915.52 = 57,934.32 : x
  2. Step 2: Convert to fraction form
    107,912.58/161,915.52 = 57,934.32/x
  3. Step 3: Cross multiply
    107,912.58x = 161,915.52 × 57,934.32
  4. Step 4: Simplify right side
    107,912.58x = 9,380,465,548.65
  5. Step 5: Solve for x
    x = 9,380,465,548.65/107,912.58
  6. Step 6: Final answer
    x = 86,926.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.